摘要
研究了以吡啶为原料,通过光氯化反应定向合成2,6-二氯吡啶。并对光氯化反应的工艺进行了研究。当吡啶与氯气配比为1:2.3,反应温度为200℃,反应5h时,光氯化反应的转化率可达95.7%。反应的进程和产品的纯度通过GC-MS进行控制。并用元素分析、红外光谱、质谱对产物的结构进行了表征。
dichloropyridine was selectively synthesized with pyridine by UV light chloronation reaction. The conditions of the reaction were optimized: the ratio of pyridine to chlorine is 1:2.3,the reaction temperature is 200℃ while the reaction time is five hours and the conversion is 95.7% at this conditions. The obtained products were characterized by IR,GC-MS and EA.
出处
《广州化学》
CAS
2005年第1期35-38,共4页
Guangzhou Chemistry
关键词
吡啶
2
6-二氯代吡啶
光氯化
2,6-dichloropyridine,photochlorination,synthesis
